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Finding the Fourth Proportional to 89,213.91, 123,103.95 and 48,917.06

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Solution

The fourth proportional to 89,213.91, 123,103.95 and 48,917.06 is: 67,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,213.91 : 123,103.95 = 48,917.06 : x
  2. Step 2: Convert to fraction form
    89,213.91/123,103.95 = 48,917.06/x
  3. Step 3: Cross multiply
    89,213.91x = 123,103.95 × 48,917.06
  4. Step 4: Simplify right side
    89,213.91x = 6,021,883,938.69
  5. Step 5: Solve for x
    x = 6,021,883,938.69/89,213.91
  6. Step 6: Final answer
    x = 67,499.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.